quasar | c4f4b783e9b152a00d5cac8b82d2ae0c74fa848aaa4a524dc5cb81b1576aaab5

Analysis

max time kernel
238s
max time network
289s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 06:14

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General

Target

uni/Uni - Copy (6).exe
Size

409KB
MD5

b70fdac25a99501e3cae11f1b775249e
SHA1

3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71
SHA256

51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246
SHA512

43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44
SSDEEP

12288:gpbJjGut6AoE3hVVdFaC/eZPTMTDlpgfJCKuMsVs:oVaurMLcDlpRKai

Score

10^/10

quasar seroxen spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SeroXen

panel-slave.gl.at.ply.gg:57059

panel-slave.gl.at.ply.gg:27892

Mutex

$Sxr-rpL8EItHN3pqIQQVy2

Attributes

encryption_key
Lme7VBS3l58VwLM69PNM
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
SeroXen
subdirectory
SubDir

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 2 IoCs

resource	yara_rule
behavioral10/memory/776-1-0x0000000000C20000-0x0000000000C8C000-memory.dmp	family_quasar
behavioral10/files/0x00070000000233f8-11.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
3988	Client.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
13	ip-api.com

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
732	schtasks.exe
4692	SCHTASKS.exe
4264	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	776	Uni - Copy (6).exe
Token: SeDebugPrivilege	3988	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3988	Client.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 776 wrote to memory of 732	776	Uni - Copy (6).exe	86
PID 776 wrote to memory of 732	776	Uni - Copy (6).exe	86
PID 776 wrote to memory of 732	776	Uni - Copy (6).exe	86
PID 776 wrote to memory of 3988	776	Uni - Copy (6).exe	88
PID 776 wrote to memory of 3988	776	Uni - Copy (6).exe	88
PID 776 wrote to memory of 3988	776	Uni - Copy (6).exe	88
PID 776 wrote to memory of 4692	776	Uni - Copy (6).exe	89
PID 776 wrote to memory of 4692	776	Uni - Copy (6).exe	89
PID 776 wrote to memory of 4692	776	Uni - Copy (6).exe	89
PID 3988 wrote to memory of 4264	3988	Client.exe	94
PID 3988 wrote to memory of 4264	3988	Client.exe	94
PID 3988 wrote to memory of 4264	3988	Client.exe	94

C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (6).exe
"C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (6).exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (6).exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:732
- C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3988
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:4264
- C:\Windows\SysWOW64\SCHTASKS.exe
  "SCHTASKS.exe" /create /tn "$77Uni - Copy (6).exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (6).exe'" /sc onlogon /rl HIGHEST
  2⤵
  - Creates scheduled task(s)
  PID:4692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

Filesize
409KB

MD5
b70fdac25a99501e3cae11f1b775249e

SHA1
3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

SHA256
51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

SHA512
43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

Download Submit
memory/776-6-0x00000000063A0000-0x00000000063B2000-memory.dmp

Filesize
72KB

Download
memory/776-1-0x0000000000C20000-0x0000000000C8C000-memory.dmp

Filesize
432KB

Download
memory/776-3-0x00000000056E0000-0x0000000005772000-memory.dmp

Filesize
584KB

Download
memory/776-4-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download
memory/776-5-0x0000000005780000-0x00000000057E6000-memory.dmp

Filesize
408KB

Download
memory/776-0-0x000000007515E000-0x000000007515F000-memory.dmp

Filesize
4KB

Download
memory/776-7-0x00000000068E0000-0x000000000691C000-memory.dmp

Filesize
240KB

Download
memory/776-2-0x0000000005C90000-0x0000000006234000-memory.dmp

Filesize
5.6MB

Download
memory/776-16-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download
memory/3988-14-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download
memory/3988-13-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download
memory/3988-18-0x0000000006A60000-0x0000000006A6A000-memory.dmp

Filesize
40KB

Download
memory/3988-19-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download
memory/3988-20-0x0000000075150000-0x0000000075900000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads